diff --git a/src/librustc_mir/hair/pattern/check_match.rs b/src/librustc_mir/hair/pattern/check_match.rs
index dc884d4..eb36989 100644
--- a/src/librustc_mir/hair/pattern/check_match.rs
+++ b/src/librustc_mir/hair/pattern/check_match.rs
@@ -146,9 +146,7 @@
             }
 
             // Third, perform some lints.
-            for pat in arm.top_pats_hack() {
-                check_for_bindings_named_same_as_variants(self, pat);
-            }
+            check_for_bindings_named_same_as_variants(self, &arm.pat);
         }
 
         let module = self.tcx.hir().get_module_parent(scrut.hir_id);